Backlight lamp cover, backlight backboard and liquid crystal display module

Abstract

The present disclosure provides a backlight lamp cover, a backlight backboard and a liquid crystal display module. According to the present disclosure, a lamp cover is improved by further providing a bending structure to support and limit a movement of a liquid crystal display panel as well as to support a bezel, in substitution of main functions of a mold frame in the related art. At the same time, the backboard structure is improved accordingly by adding a stepped structure so as to supplementally limit the liquid crystal display panel. Thus, the functions of a mold frame in the related art can be provided without a conventional mold frame in a liquid crystal display module. That is, one part is reduced.

Description

FIELD OF THE INVENTION[0001]Embodiments of the present disclosure relate to a display apparatus, and in particular to a backlight lamp cover, a backlight backboard and a liquid crystal display module.BACKGROUND OF THE INVENTION[0002]A Thin Film Transistor Liquid Crystal Display (TFT-LCD) has advantages such as small volume, low power consumption, no radiation, etc., and occupies the leading position of the flat panel display market, being widely used in various fields such as liquid crystal televisions, computers, cell phones, PDA, and so on. In a liquid crystal display, a backlight is an important component, for providing a light source for a liquid crystal display in work, and the backlight constitutes a large proportion of a cost of the entire liquid crystal display. Therefore, reduction in the cost of the backlight becomes one of the aims in continuous competitions of every manufacturing factory.[0003]As shown in FIG. 1, a typical liquid crystal display module comprises a backli...

AI Technical Summary

Benefits of technology

[0006]The present disclosure aims to provide a backlight lamp cover, a backlight backboard and a liquid crystal display module, making it possible to cancel a mold frame in a liquid crystal display module of the related art, that is, to reduce one part.

[0012]Embodiments of the present disclosure provide a backlight lamp cover, a backlight backboard and a liquid crystal display module. According to embodiments of the present disclosure, the structure of the lamp cover is improved in that besides the functions of protecting a lamp tube and dissipating heat from the lamp tube, the backlight lamp cover is further provided with a bending structure to support and limit a movement of the liquid crystal display panel as well as to support a bezel, so that the lamp cover provides main functions of a mold frame in the related art in substitution of the latter. In consideration of that the backlight lamp cover is only accommodated in the backlight backboard at the side portion corresponding to the light incident surface of the light guide plate, and side portions of the backlight backboard not for accommodating the backlight lamp cover do not completely limit the movement of the liquid crystal display panel, after the structure of the backlight lamp cover is modified, the structure of the backboard is correspondingly improved by providing a stepped structure thereto, so as to supplementally limit the liquid crystal display panel. As a result, with embodiments of the present disclosure, it is possible to provide all the functions of a mold frame in the liquid crystal display module with the mold frame canceled, so that the assembly procedure is simplified, the development cost for the mold frame is saved, leading to a greatly reduced cost and an improved competitiveness of products. In addition, as the mold frame is canceled and the lamp cover is used instead to direct support and limit movements of the liquid crystal display panel, the entire thickness of the liquid crystal display module is reduced, which is also advantageous for making the entire liquid crystal display apparatus slim and light.

Problems solved by technology

In a liquid crystal display, a backlight is an important component, for providing a light source for a liquid crystal display in work, and the backlight constitutes a large proportion of a cost of the entire liquid crystal display.

The inventor finds that the related art has at least the following problems: in an existing backlight, the mold frame is designed separately, and therefore, the development cost for dies is comparatively high; and meanwhile, the backlight has a relatively large number of parts, causing a comparatively low efficiency of assembling the backlight.

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